android - 无法在 Android 模拟器的 webview 中查看网页

Question

我正在尝试运行它自己提供的WebView 示例Flutter。现在我面临的问题是，当我运行示例时，我无法查看网页本身。当应用程序第一次运行时，它要求我打开进入或查看下面的屏幕截图。android emulatorAndroid studioWebViewinitialUrlchromeweb browser

但是，当我在我的移动设备上运行相同的示例时，它工作正常，我可以看到网页 insdieWebView

代码

class _WikipediaExplorerState extends State<WikipediaExplorer> {
  Completer<WebViewController> _controller = Completer<WebViewController>();
  final Set<String> _favorites = Set<String>();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Wikipedia Explorer'),
        // This drop down menu demonstrates that Flutter widgets can be shown over the web view.
        actions: <Widget>[
          NavigationControls(_controller.future),
          Menu(_controller.future, () => _favorites),
        ],
      ),
      body: WebView(
        initialUrl: 'https://en.wikipedia.org/wiki/Kraken',
        onWebViewCreated: (WebViewController webViewController) {
          _controller.complete(webViewController);
        },
      ),
      floatingActionButton: _bookmarkButton(),
    );
  }

  _bookmarkButton() {
    return FutureBuilder<WebViewController>(
      future: _controller.future,
      builder:
          (BuildContext context, AsyncSnapshot<WebViewController> controller) {
        if (controller.hasData) {
          return FloatingActionButton(
            onPressed: () async {
              var url = await controller.data.currentUrl();
              _favorites.add(url);
              Scaffold.of(context).showSnackBar(
                SnackBar(content: Text('Saved $url for later reading.')),
              );
            },
            child: Icon(Icons.favorite),
          );
        }
        return Container();
      },
    );
  }
}